21348261

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{1129}}^1$

素因数の和:1337

約数の個数: 24

約数和(自身を含む): 33845760

約数和(自身を除く): 12497499

約数列:

[1, 3, 9, 11, 33, 99, 191, 573, 1129, 1719, 2101, 3387, 6303, 10161, 12419, 18909, 37257, 111771, 215639, 646917, 1940751, 2372029, 7116087, 21348261]

約数ペア:

[(1, 21348261), (3, 7116087), (9, 2372029), (11, 1940751), (33, 646917), (99, 215639), (191, 111771), (573, 37257), (1129, 18909), (1719, 12419), (2101, 10161), (3387, 6303)]